Synopsis

On their way back from the 18th floor, Hestia, Bell, and the others accidentally uncover a hidden, mystical hot spring, and they decide to stop by to refresh themselves until creatures lurking in the dark appear to attack them.

What should i say, the typical onzen ova, some fanservice, super predictable plot, swimsuits that disappear and the cliche monster.

Story: Garbage, if you liked that much the show, you probably will feel disappointed to see AGAIN the onzen+Swimsuit plot, that you have already seen several times in every "mcdonalds" anime, the lack of creativity...

Art: Same as main anime, same studio of course, some fanservice, curiously not explicit.

Sound: Mhe.

Character: Not development of any character, it's an Ova it's okay.

Enjoyment: Since this is my personal taste i will be very subjective; boring or just to chill.

This episode for sure won't be for everyone, but may my fellow perverts rejoice for the greatness that is, Hot Springs.

Boobs (10)
Outstanding boobs, Couldn't ask for more.

Fanservice (10)
Outstanding fanservice, Couldn't ask for more

Hestia (10)
Outstanding Hestia, couldn't ask for more

Now I only put story as 10 cuz why not, but in reality, maybe a N/A score. Just because there really wasn't any story. But we can assume this took place after episode 13th, the conclusion of the epic battle. Bell and friends decide to head back until accidentally Hestia the Goddess finds a beautiful "Hotspring." thus the boobs begin. Most
of the episode revolves around everyone and the Hotsprings and the swimsuits and the monsters at the end. ONLY to find out that the hot springs were a trap and when Bell and Hestia I guess "activated" it, the water turned red which then dissolves all the swimsuits of the remaining people in the water.

Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka OVA, despite its long name typical of bad titling of novels in Japan (fire be launched right away), was just another OVA in a nutshell of girls and boys swimming all together in an hotspring, of any level they'd explore. And there is an handful of the last one.
So what is so special about this one OVA? Absolutely nothing new, so pass your way if you just don't want to see almost naked girls, and stay if you are sexually aroused by underage-looking explorers taking a bath in any dungeon they just explored.

Story (6) :

There's no real story, and for an anime whose popularity is only attracting gamers in a fantasy, rpg-like environment they should have stayed to the first season, because God that was lame. I kind of appreciated the parts where clothes started disappearing but the overlapping gags and puns that weren't fun, and yet I could pass on it but the dialogues were all annoying. This rating is still really fair since it managed to stay in the first season's mood.

Art (7) :

This is the generic artstyle of anime since five years, meaning high quality but kind of industrialized. One thing I really did not appreciate for the slightest must be the jaw drawing, which is unatomic-like (that is not a word)...
Well breasts were breasts, skin was skin, swimsuits were exciting. Can't really downrate it there.

Sound (6) :

Passing opening and ending, but the cast of characters is so annoying in seiyuu ; the sound effects are average, and that's about it. I could try like now to say further, but it's really average, almost generic, let's say lowest xpectations. It meets them nonetheless.

Character (7) :

Well passing for the whole of the family of the blonde girl (and her too since she's so bothering), every other character was bad written, with only few characteristics to define their entire existence, like 80% of all anime characters I guess.
But there are three reasons the rating is 7 :
* the girl with green hairs has green hairs, and that is amazing to me.
* the loli goddess is a loli, and that is satisfying I guess.
* the Bell is Bell, he also has a nice knife.

Enjoyment (5) :

Only watched it for completing the franchise, but this is nowhere from fun. Let's forget about this one easily, but that was nice for an ecchi ova, I guess it's just the original anime that didn't have much charm for me to give. Then again it had a nice concept [the first season], as well as this OVA's storyline. Guess the script writers had to make do.

Overall (6) :

In an anime, if two criterias are put together such as OVA and Ecchi it is almost guaranteed to become a bath OVA. I already reviewed some similar anime with Haiyore! Nyaruko-san and it was the cast which made the special enjoyable. For this one, it is only the ecchiness and source material, therefore there was nothing for me to expect.
You should watch it to make yourself an opinion, perhaps am I only gone rabid on this anime, I watched it in a while and after remomerizing this is what I remember.
Thanks for reading this review and have a nice day.